immunization

noun

1. the fact or process of becoming immune, as against a disease.
2. Finance. a method of protection against fluctuating bond interest rates by investing in securities having different yields and terms.

1. The process of inducing immunity to an infectious organism or agent in an individual or animal through vaccination.
2. A vaccination that induces immunity. A recommended schedule of immunizations for infants and young children includes vaccines against diphtheria, polio, tetanus, measles, mumps, and rubella.